Tolerance among scientists cannot be based on indifference, it must be based on respect. Respect as a personal value implies, in any society, the public acknowledgements of justice and of due honor. These are values which to the layman seem most remote from any abstract study. Justice, honor, the respect of man for man: What, he asks, have these human values to do with science? [...]
Those who think that science is ethically neutral confuse the findings of science, which are, with the activity of science, which is not.

Part 3: "The Sense of Human Dignity", §6 (p. 63–64) - Science and Human Values (1956, 1965)